Door-fastener.



PATENTED JUNE 9,- 1908.

T. c. NICHOLSON.

DOOR FASTBNBR.

APPLICATION FILED 10?.19, 1907.

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UNITED STATES PATENT OFFICE.

THOMAS C. NICHOLSON, OF MEMPHIS, TENNESSEE DOOR-FASTENER.

T 0 all whom it may concern:

Be it known that I, THOMAS C. NICHOL- SON, a citizen of the UnitedStates, residing at Memphis, in the county of Shelby and State ofTennessee, have invented new and useful Improvements in Door-Fasteners,of which the following is a specification.

This invention is an improved door fas tener, especially adapted for useby travelers for fastening doors so that they can not be opened from theoutside, the object of the invention being to provide a simple, light,cheap and exceedingly compact door fastener which may be carried readilyin a pocket or other small receptacle, and which may be readily appliedto a door for the pur pose of fastening the door, without the necessityofemploying tools, and which may also be readily detached from the door,and the said invention consists in the construction, combination andarrangement of devices.

In the accompanying drawings, Figure 1 is a plan of a door fastenerconstructed in accordance with my invention, showing the same applied, aportion of the door and of the frame being indicated in section. Fig. 2is a perspective view of my improved door fastener showing the same inextended position. Fig. 3 is a similar view showing the same in foldedposition and compactly disposed. Fig. 4 is a plan view of the bolt.

My improved door fastener comprises a guide and stop frame, combinedwith a bolt which is longitudinally movable in said frame and is alsoadapted to be folded longitudinally to compactly dispose the bolt andenable the fastener to be readily carried in a pocket or other smallreceptacle and effect a compact disposition of the fastener.

In the embodiment of my invention here shown, the stop and guide frame 1is rectangular in cross-section, is provided with a longitudinal guidegroove which is coextensive in length therewith and is also nearlycoextensive in width therewith, and on one side of the said frame is alongitudinal slot 2 which extends from end to end thereof. At one end ofsaid frame which I will term the inner end thereof is a flange 3 whichextends around the sides thereof and when the fastener is in use isadapted to bear against the inner side of the door and the proximateportion of one side of the door jamb or frame as shown in Fig. 1. In oneside of the said frame at a point opposite the groove 2 is a set screw4.

Specification of Letters Patent.

Application filed November 19, 1907.

Patented June 9, 1908.

Serial No. 402,890.

The bolt 5 which is slid able longitudinally in the frame comprises aninner section 6 and an outer section 7 hinged together as at 8, thehinged connections between said sections projecting from one sidethereof and disposed in the slot 2 which serves to clear the same. Theinner end of the section 6 is provided with a wedge-shaped head 9 whichis adapted to be inserted in the latch opening of a strike plate, theshoulder 10 thereof engaging one wall of the opening as shown in Fig. 1,in which the door is indicated at c, and the strike plate is indicatedat b, the lock not being shown. The section 6 is reduced as at 10 topermit the application of the head 9. When the bolt is drawn in onedirection in the frame, the shoulder 10 thereof comes in contact withthe stop end of the frame and the outer section 7 of the bolt may bethen folded on the frame over the slot 2, as shown in Fig. 3, therebyeffecting an exceedingly compact disposition of the fastener andenabling the same to be readily placed in a pocket or other smallreceptacle.

In the operation of my improved door fastener, the bolt is firstextended and is moved longitudinally in the frame to enable the head 9thereof to be inserted in the latch opening of a strike plate so thatwhen the door is closed the removal of the fastener is impossible. Theframe is then moved on the said extended bolt to cause its stop end 3 tobear against the door and the jamb or frame, and the set screw is thencaused to firmly engage the outer section 7 of the bolt so as to' lockthe frame firmly on the bolt and enable the frame to resist pressureapplied to the door from the outer side thereo and hence counteract anyattempt to open the door from the outside. The sections are roughened asat 4 to permit the firm engagement of the set screw therewith.

It will be understood that in order to re lease the fastener from thedoor it is only necessary to first disengage the set screw 4 from thebolt and then disengage the frame from the bolt, whereupon the door maybe readily opened, after which the head of the bolt may be readilydisengaged from the strike plate. It is to be understood that thefastener can be used on a door provided with a rim lock.

Having thus fully described the invention, what is claimed as new is '1.A door fastener of the class described comprising a stop and guide frameopenat its ends and a hinged bolt slidable longitudinally in said frame,said bolt being provided at one end with a head for the purpose setforth, said head being adapted to engage one end of the guide and stopframe when said bolt is drawn in one direction, one section of the boltwhen said head is thus in contact with one end of the stop and guideframe being foldsaid head being adapted to engage one end of the guideand stop frame when said bolt is drawn in one direction, one section ofthe bolt when said head is thus in contact with one end of the stop andguide frame being fold- 20 able against one side of said stop and guideframe, and a set screw in one side of said stop and guide frame toengage said bolt and 'secure the same against longitudinal movement.

In testimony whereof I afiix my signature 5 in presence of twoWitnesses.

THOMAS C. NICHOLSON. Witnesses:

L. A. FERGUSON, P. L. JOHNSON.

